Description
2009 Cadillac CTS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Cadillac CTS 3.6L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566




Victor Palmer –
I was really impressed with how quickly the ECM arrived—faster than I expected, which was a huge relief. When I got it installed, the plug-and-play setup made everything straightforward, even for someone like me who isn’t super handy with car electronics. The unit was already VIN programmed, so it worked perfectly right out of the box. Compared to the dealer’s prices, this saved me a ton of money without sacrificing quality. The whole experience felt professional, and the staff kept me updated along the way, making it a smooth process from start to finish. I’m truly happy with this purchase and would recommend it to anyone in need of a reliable ECM replacement.
Brandon Brooks –
I purchased the 12630594 ECM for my 2009 Cadillac CTS, and I’m really impressed with the quality. The unit arrived quickly with free shipping, which was a nice bonus. Their team provided professional programming, so it was truly plug-and-play once installed. Communication was clear throughout the process, and they answered all my questions promptly.
Noah Perez –
I was a bit nervous about ordering a replacement ECM for my 2009 Cadillac CTS, but this unit arrived quickly and was already VIN programmed, which made installation a breeze. The best part was how the seller provided professional programming service, so I didn’t have to worry about compatibility or extra setup. They also kept me updated every step of the way, answering my questions promptly and making the whole process very smooth. My car is running perfectly now, and I’m really impressed with the quality and service. Definitely a five-star experience from start to finish.
Logan Peterson –
I’m really impressed with how quickly the ECM arrived—it was shipped out fast and ready to go right away. Installation was straightforward since the unit came VIN programmed and plug-and-play, which saved me from a complicated process. Compared to dealer prices, this service saved me a ton of money, and their communication throughout was very professional and helpful. Overall, a smooth experience from start to finish.
Joel Hayes –
Great quality ECM that arrived quickly with free shipping, and it was plug-and-play right out of the box.
Zachary Peterson –
I was really impressed with how smoothly everything went with this ECM for my 2009 Cadillac CTS. The unit arrived quickly thanks to their free shipping, which was a great bonus. What stood out most was the professional programming service—they had it perfectly matched to my VIN before it even shipped. Installation was straightforward, and my car has been running flawlessly ever since. The team also stayed in touch throughout the process, answering every question I had right away. Overall, a hassle-free experience with a quality product.
Patrick Peterson –
Fast shipping and the ECU was truly plug-and-play, saving me a ton over dealer prices—installation went smoothly and the customer service was spot on.